Imaging and texture observation of materials by using a pulsed neutron spectroscopic transmission method

被引：15

作者：

Kiyanagi, Yoshiaki ^{[1
]}

Kamiyama, Takashi ^{[1
]}

Takada, Osamu ^{[1
]}

Morita, Keigo ^{[1
]}

Iwase, Kenji ^{[1
]}

Suzuki, Shun ^{[1
]}

Furusaka, Michihiro ^{[1
]}

Hiraga, Fujio ^{[1
]}

Tomioka, Satoshi ^{[1
]}

Mishima, Kaichiro ^{[2
]}

Takenaka, Nobuyuki ^{[3
]}

Ino, Takashi ^{[4
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[2] Kyoto Univ, Inst Res Reactor, Osaka 5900494, Japan

[3] Kobe Univ, Nada Ku, Kobe, Hyogo 6578501, Japan

[4] KEK, Inst Mat Struct Sci, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 600卷 / 01期

关键词：

Imaging; Pulsed neutron; Bragg edge; Texture; Weld; Total cross-section; DIFFRACTION;

D O I：

10.1016/j.nima.2008.11.024

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Spectroscopic transmission method using a pulsed neutron source combined with a 2-dimensional position sensitive detector is expected to give texture information of materials depending on the position. This method gives not only the transmission imaging of the objects but also the structural imaging obtained by the total cross-section of the materials including the Bragg edges. In order to study the structural change due to welding, we performed transmission experiments and obtained the cross-section map of the welded sample. In the case of welded samples, the cross-section changed depending on the position. It clearly showed the welded region, heat affected region, and as-cast region, and indicated texture change reflecting the cross-section. It suggests that the method will have a possibility to give more information on microstructure of materials, such as density change, grain size and so on. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：167 / 169

页数：3

共 6 条

[1] Real time measurement by Bragg edge diffraction of the reverse (alpha'->gamma) transformation in a deformed 304 stainless steel [J].

Bourke, MAM ;

Maldonado, JG ;

Masters, D ;

Meggers, K ;

Priesmeyer, HG .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 221 (1-2) :1-10

[2] Images obtained by neutron transmission measurement using time-of-flight method [J].

Kiyanagi, Y ;

Mizukami, K ;

Kamiyama, T ;

Hiraga, F ;

Iwasa, H .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005, 542 (1-3) :316-319

[3] Material characterization using cold neutron transmission spectroscopy [J].

Kiyanagi, Yoshiaki ;

Kamiyama, Takashi ;

Nagata, Toshiyuki ;

Hiraga, Fujio ;

Suzuki, Shun .

PHYSICA B-CONDENSED MATTER, 2006, 385-86 :930-932

[4] Measurements of performance of a pixel-type two-dimensional position sensitive Li-glass neutron detector [J].

Mizukami, K ;

Sato, S ;

Sagehashi, H ;

Ohnuma, S ;

Ooi, M ;

Iwasa, H ;

Hiraga, F ;

Kamiyama, T ;

Kiyanagi, Y .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 529 (1-3) :310-312

[5] Engineering applications of Bragg-edge neutron transmission [J].

Santisteban, JR ;

Edwards, L ;

Fizpatrick, ME ;

Steuwer, A ;

Withers, PJ .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2002, 74 (Suppl 1) :S1433-S1436

[6] Time-of-flight neutron transmission diffraction [J].

Santisteban, JR ;

Edwards, L ;

Steuwer, A ;

Withers, PJ .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2001, 34 :289-297

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